1 Reply Latest reply: Jun 28, 2012 9:44 AM by JFFulcrum RSS

one-way speed of single x1 PCIe slot with G41 chipset

Paul A. Mitchell Community Member
Currently Being Moderated

The block diagram here:

http://www.intel.com/content/www/us/en/chipsets/mainstream-chipsets/g41-express-chipset.html

states:

 

500 MB/s each x1

 

But, is this speed for one direction only, or

for both directions combined?

 

In other words, if I install an x1 PCIe 2.0 RAID controller e.g.

Newegg.com - HighPoint RocketRAID 620 PCI-Express 2.0 x1 SATA III (6.0Gb/s) Controller Card

is the maximum upstream bandwidth limited to 250 MB/s

even though each SATA channel is rated at 300 MB/s?

 

It would help if the chipset block diagram indicated

the PCI-Express Generation for the x1 slot.

 

The block diagram does indicate PCI Express 1.1 for the x16 slot.

 

If the x1 slot is also PCI Express 1.1, THEN the one-way

bandwidth of that x1 slot is 250 MB/second, correct?

 

Please confirm or correct the above.

 

RSVP and ... THANKS!

 

 

MRFS

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